What is the impression of concrete components in everyone’s mind? Rough, bulky, dusty on site, and harsh noise… The new “nano building blocks” will break the stereotypes mentioned above..

The full name of “nano building blocks” is prefabricated ultra-high performance nano concrete lightweight power components, which have many advantages such as strength, toughness, lightweight, green and environmental protection, and have won 14 patents, including the silver award at the 2022 Geneva International Invention Exhibition..

On February 28th, the technology officially signed a purchase contract with the Fujian Provincial Administration of State Grid, marking the first time in December 2022 that this innovative achievement has been expanded and applied outside the province after being included in the provincial company’s new technology promotion catalog. What is a complex name like it? What can we do? What does it have to do with all of us?.

On September 27, 2016, the State Council issued the Guiding Opinions on Vigorously Developing Prefabricated Buildings. State Grid Corporation of China (SGCC) comprehensively carried out standardized construction, renovation, and creation activities for distribution networks. SGCC Jiangsu Electric Power proposed a work requirement to reduce the duration of industrial expansion and access projects..

Under this requirement, in 2017, State Grid Lianyungang Power Supply Company developed ordinary concrete prefabricated components for the first time and widely applied them in projects such as agricultural distribution networks from 2018 to 2021..

A: Concrete prefabricated components are building components pre made in factories using concrete as the basic material, just like the accessories in LEGO. Common types include precast concrete floor slabs, concrete box girders for bridges, precast concrete roof trusses for industrial plants, culvert frames, and precast concrete piles for foundation treatment..

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In response to development needs, in 2021, State Grid Jiangsu Electric Power proposed to continuously strengthen the standardization construction of distribution networks, and increase the research and application of new processes, technologies, and materials..

The coastal area of Lianyungang has unique geomorphic features, and the problem often encountered during construction is that the internal steel bars of power transmission and transformation projects are prone to corrosion in coastal corrosive environments. State Grid Lianyungang Power Supply Company has conceived and developed new high-performance corrosion-resistant materials based on precast concrete components, paving the way for breakthroughs..

In order to achieve results in this direction, State Grid Lianyungang Power Supply Company has formed a project research and development team in collaboration with multiple departments, covering the entire cycle from project research and development to achievement transformation..

The team searched for more than ten materials and, after conducting multiple rounds of testing, comparison, and comprehensive consideration of subsequent production costs, ultimately chose to use a new material of ultra-high performance nano concrete that is corrosion-resistant, tough, and environmentally friendly as the raw material for “prefabricated ultra-high performance nano concrete lightweight electrical components”..

This material is composed of composite materials such as cement nanoparticles (a type of nano sized active micro silica powder prepared as an admixture). This “set of operations” minimizes the internal pores and microcracks, achieving ultra-high strength, high toughness, and extremely low permeability of the material. Materials are also known as “liquid metals”..

Just like in an empty beverage bottle, first increase the size of the steel ball, and then add the small steel ball. Try again and find that the seemingly full bottle can still be gradually filled with sand and water, using smaller particles to fill the beverage bottle step by step. It is easy to separate small and large steel balls, but it is difficult to separate “water mixed with sand” and “steel balls mixed with sand”, which is actually “pre planning”.